Enter the text => press on the 'X' to close whatever audio pops-up afterwards.

1 - P
2 - Proton Sphere
3 - P
4 - Burn
5 - Ra
6 - filth

Notes: * There are 6 stages in total.
** Don't use quotation marks when entering the text.
*** You can use ctr+C / ctrl+V

Stage 1 (Sane) - Click wherever you want on the screen and write: ''Sleep''.
When you see the yellow filter being applied to the screen, write: ''Yes''.
When the audio log starts playing - press 'X''.

Stage 2 (On the Edge) - Click wherever you want on the screen and write: ''Photon Sphere''.
When the audio log starts playing - press 'X''.

Stage 3 (Crazy) - Click wherever you want on the screen and write: ''Stem Cell''.
When you see the yellow filter being applied to the screen, write: ''Yes''.
When the audio log starts playing - press 'X''.

Stage 4 (Insane) - Click wherever you want on the screen and write: ''Bury''.
When the audio log starts playing - press 'X''.

Stage 5 (Mental Breakdown) - Click wherever you want on the screen and write: ''Ra''.
When the audio log starts playing - press 'X''.

Stage 6 (Higher Plane) - Click wherever you want on the screen and write: ''Filth''.
When the audio log starts playing - press 'X''.

That's all there is to it.